<template>
  <van-form @submit="submitForm" @fialed="onFailed" ref="ruleFormRef" :model="form">
    <van-cell-group>
      <van-field
        v-model="form.username"
        label="账号"
        placeholder="请输入账号"
        clearable
        name="username"
        :rules="usernameRules">
      </van-field>
    </van-cell-group>
    <van-cell-group>
      <van-field
        v-model="form.password"
        label="密码"
        placeholder="请输入密码"
        clearable
        type="password"
        name="password"
        :rules="passwordRules">
      </van-field>
    </van-cell-group>
    <van-cell-group>
      <van-field
        v-model="form.confirmPassword"
        label="确认密码"
        placeholder="请再次输入密码"
        clearable
        type="password"
        name="confirmPassword"
        :rules="confirmPasswordRules">
      </van-field>
    </van-cell-group>
    <van-cell-group>
      <van-button block round type="primary" native-type="submit">注册</van-button>
    </van-cell-group>
  </van-form>
  <div class="tip">注册成功后的用户可用于登录</div>
</template>

<script setup>
import { ref, reactive } from 'vue'
import { getUser, register } from '../api'
import useToken from '../stores/token';
import useUser from '../stores/user';
import { useRouter } from 'vue-router';

const { updateToken } = useToken()
const { updateUser } = useUser()

const form = reactive({
  username: '',
  password: '',
  confirmPassword: ''
})

const ruleFormRef = ref()
const router = useRouter()

//定义验证规则
const usernameRules = ref([
  { required: true, message: '用户名不能为空', trigger: 'onBlur'},
  { pattern: /^\w{3,16}$/, message: '用户名长度为3-16个字符', trigger: 'onBlur'}
])

const passwordRules = ref([
  { required: true, message: '密码不能为空', trigger: 'onBlur'},
  { pattern: /^\w{6,24}$/, message: '密码长度必须为6-24个字符', trigger: 'onBlur'}
])

const confirmPasswordRules = ref([
  { required: true, message: '密码不能为空', trigger: 'onBlur'},
  { pattern: /^\w{6,24}$/, message: '密码长度必须为6-24个字符', trigger: 'onBlur'},
  { validator: value => {
    if (value !== form.password) {
      return '两次输入密码不一致'
    }
    return true
  }}
])

//表单提交
const submitForm = async () => {
  const data = await register(form)
  if (data) {
    updateToken(data.token)
    const user = await getUser()
    updateUser({
      isLogin: true,
      username: user.username,
      avatar: user.avatar !== '' ? config.baseURL + '/' + user.avatar : ''
    })
    router.push({name: 'user'})
  }
}

const onFailed = errorInfo => {
  console.log('failed', errorInfo)
}
</script>

<style lang="less" scoped>
button {
  position: fixed;
  top: 270px;
}
.tip {
  position: fixed;
  top: 330px;
  text-align: center;
  width: 100%;
  font-size: 14px;
  color: #666;
}
</style>